public class Xinjian {
    public static void main(String[] args) {
        System.out.println("hello world");
        System.out.println("first");
        System.out.println("second");
        System.out.println("second");

        System.out.println("Third");
        System.out.println("Fourth");
        System.out.println("Fifth");
        System.out.println("Sixth");
        System.out.println("Seventh");
        System.out.println("Eighth");
        System.out.println("Ninth");
        System.out.println("Tenth");
        System.out.println("Eleventh");
        System.out.println("Tw");
        System.out.println(111);
        pss.println("hello world");
        pss.println("first");

    }
    public static void mergeSort(int[] arr) {
        if (arr == null || arr.length <= 1) {
            return;
        }
        int[] temp = new int[arr.length];
        mergeSort(arr, 0, arr.length - 1, temp);

    }
    static 
    mystatic
    private static void mergeSort(int[] arr, int left, int right, int[] temp) { 
    }
}
